You have just applied a bandage over a dressing that was used to cover an open laceration to the forearm. Following the application, you erases the PMS (Pulse, Motor, Sensation) findings and discern that there is no longer a distal pulse. The patient says that his hand is "tingling". What could be the reason for these findings?
A. The bandage caused a clot to be dislodged that is now plugging the artery leading to his arm.
B. The bandage was applied too tightly.
C. The dressing has caused a reaction to the blood vessel, which is vasoconstricted.
D. The patient has gone into cardiac arrest.
Answer: B. The bandage was applied too tightly.
If the bandage is too tight, the circumferential pressure caused may be sufficient to block any distal blood flow. A dressing should be applied snuggly enough to hold the dressing in place and contribute to the stoppage of bleeding but not so tightly that it impairs all distal blood flow.
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